Posted on 06/02/2016 7:58:51 PM PDT by 2ndDivisionVet
Right. That claim is up there with hurricane and warming predictions. How is Idaho going to be affected? It's a LONG ways from the coast to Idaho.
“Oh, noes....”
I’ve lived in California 43 years and every year they tell us “there’s a 90% probability of a 7.0 or larger quake in the next 30 years.”
Interesting. Thank you.
Did not know that. Thank you.
8.0 to 9.2 is 16x, not 80x.
His PhD probably concluded “I recommend LOTS more research on Cascadia Subduction.”
That damned Murphy! I’m so sad the Cascadia Subduction Zone isn’t directly under Washington DC, I could just cry.
What about the quake triggering St Helens, Hood, or Rainer to come alive?
Dear CurlyDave,
Not really. Less than 60 years ago (1958) there was a tsunami greater than 1400’ in Alaska.
See below from wikipedia:
“The 1958 Lituya Bay megatsunami occurred on July 9 at 10:15:58 p.m., following an earthquake with a moment magnitude of 7.8 and a maximum Mercalli Intensity of XI (Extreme). The earthquake took place on the Fairweather Fault and triggered a rockslide of 30 million cubic metres (40 million cubic yards, and about 90 million tons) to fall from several hundred metres into the narrow inlet of Lituya Bay, Alaska. The impact was heard 50 miles (80 km) away,[6] and the sudden displacement of water resulted in a megatsunami that destroyed vegetation up to 1,722 feet (525 m) above the height of the bay and a wave that traveled across the bay with a crest reported by witnesses to be on the order of 98 feet (30 m) in height.[citation needed] This is the most significant megatsunami and the largest known in modern times. The event forced a re-evaluation of large wave events, and recognition of impact, rockfall and landslide events as a previously unknown cause of very large waves.”
Cheers! I admit, however, that it was probably the geography involved that resulted in this megatsunami and that would be unlikely in your area.
They cover that in the National Geo clip upthread. For this type of situation (subduction), what happens is the plate which is trying to slip under the other, gets stuck, and bulge (almost shaped like a wrinkle in the crust) forms in the upper plate; and the earthquake happens when they suddenly come *un*stuck and slide past each other.
The magnitude of the quake is proportional to the surface area involved: and in this case, the area stuck is about the size of Ireland.
Looking forward to that buying opportunity...
There you go, those bays focus the tsumami most excellently.
Had that here on the Big Island in the 2011 tsunami from the Fukushima quake. Most of the coast had little but surge. Keauhou bay got the royal flush.
Other bays got various amounts of excessive damage including a house washed into the bay, but all in enclosed areas.
The worst will be the destruction of transportation lines. Rail lines will be ruined, and the highways totally disrupted. I think that I will begin keeping 10 gallons of water in the car at all times, just in case. I live 1/4 west of I-5 and East of Aberdeen, WA.
St Helens, Hood, or Rainer?
all three are having small earthquakes these days recently.
It is going to be epic if Rainer goes pop
The largest Tsunami ever recorded happen in Alaska and reached 1720 feet high.
Doubt it’s a conspiracy/hiding data from us. It only makes sense to train in the areas most likely to suffer the catastrophes - knowing the terrain and other features/resources is a smart thing.
Should I worry in Cleveland?
8.0 to 9.2 is 16x, not 80x
Example.
A 5.0 is 10X the magnitude of a 4.0 on the Richter scale.
Example.
A 5.1 is twice the magnitude of a 5.0 on the Richter scale.
Make sense?
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